Gas purifier



April 16, 1929. F. E. LAMMERT GAS PURIFIER Filed June 24, 1924 l. l IIIIIIIIIIHHHHNV VII/Illu?,

Patented Apr. 16, 1929. l

.c UNITED sra'rias` PATENTOFF Gas ISURIFIEB.

application nled- June 24,

My invention relates to an air purifying apparatus attached to the discharge end of an air compressoror air vacuum pump to free the air as completely as vpossible from oil' vapors or other vfoul matter as the air comes from the compressor or vexhaustfmachine. p a

- The object of the invention is' to produce a neat, compact, cheap and highly eicient apparatus thatmay bereadily attached to the vacuum or compressor lmachines genv erally employed.

Reference will be had tothe accompanying `drawing in which Fia. 1 is a front elevation of what may be either an air exhaust vmachine oran air compressor of the rotary type' to which myapparatus is attached.

Figure 2 isa verticalv section throughl the v air purifying apparatus to which this invention relates.

Figure `3 is a transverse section .online 3-3of Fig. 2'.A

Figure 4 is a detail sect-ional elevation showing the water pipe connection.`

Figure 5 -iskan end view indicated by the line 5-5 of Fig. 2.

ordinary rotary air ,compressor or exhaust machine which` isfhere shownv driven byl a shaft 2 by a belt drive pulley 3 or may .bey

driven byany suitable means. I

The exhaust or discharge from lthei'otary compressor 1 asses out by a pipe 4from the machine 1. e pipe4 enters into the chamber 5 in which there isprovided a series of baiiles and other Vmeans for collecting oil Y -and other impurities that may come along vwith the air as it-,leaves the Amachine 1.

. Air compressoraud exhaust machines of the rotary positive type such asis here shown are necessarily well lubricated and there is carried along with the air more or` less lubricatin oil `from the vanes of the machine. The hreavy globules of oil and vother heavy impurities areusually Ysegregated in the chamber 5 and are returned back to the maf lchine 1 for continued repeated use. Various different oil catching devicesare used in this ing the oil and freeing the air from itv somev yoil goes over and through th'echamber 5 in the form of finely divided 'spray or vapor. The accumulation of oil vapor inthe air of a machineA of this class is .promoted bythe 192,4. serial No. 72ans.

vapor for thatfmatter, as its temperature' rises! lWith'the oil separatin devices com monly'used in what correspon s to the chamber 5 there isrelativelyl a vlarge amount of oil vapor passing on throughwitl'i the air to become `a troublesome featureof condensai tion and *pollution of the .air discharged by the machine. It is highlyy desirable to eliminate the 1oil vapor from the air as much as possible. "Not only to dothat, butto do it in a neat efficient vvayand in compactform.

Many ofthesemachines are used in closey v lquarters by unskilled help".l For illustration f ywith milking machinesplacedfin barns and other places Vand installed andused by help not generally familiar with machinery.

"Itxis desirable tojmake vequipment of this y'kiiidas much aspossible in the form of a` single unit as it is shipped from the factory and eliminate as much as possible anyla'bor setting up and adjusting it after the machine reaches its place of service. VTo this end I y Y have provided a compact and eiicient device In the drawingl indicates the body of an l thatmay be rconnected and sent out with the machine'i'.tself..jI j 4 y, I

On thetop of the ordinary chamber 5 I provide an additional-chamber.6in which to contain my purifying devices'. 4After lthe air passes through inychamber 6 as I will describeit is then discharged;'through the pipe to the service or Lto the"l outside'aii depending' on Whether the machine is lused as a compressor or as an exhaust.

While the heavier particles of the oilwill y loek gathered in the .chamberv 5y someremains in' vapor which residual .oilis collectedl freni the permanent gases in" =inychamloer 6 and` likewise returned to be used over'again.

yThe chamber Gis providedwith a bottom.l

vplate wall 8 secured kbybolts or `any suitable means to the flangev9 ofthe topv ofthe chamber 5 and thus as it were 4my-purilier yisfan additionto the nominal oil Iseparator cham* ber 5. .At the top of the chamberlprovi'de v the flange plate 10 into which the discharge pipe 7 j is.v secured and this flange plate 10 is lsecuredfby bolts or other suitablemeans to the body of the chamber 6@ y v vOn the interior` of `the chamber' I provide a horizontal wall l1 located below the flange plate 10` providing the annular space 13, and

Va horizontal Wall'12 lo'catedsu'fliciently above the bottoni plate Wall 8 to provide annularv pipe 17 and thus be made to circulate around through the tubes 15 and cool the same as well to cool the Walls 11 and 12.'l

. The entry of the air from the machine 1 to the chamber 6 is provided by the aperture 18 sec Figs. 2 and 3 as it' goes up from the cham ber 5 and it thenpasses out through the triangular shaped opening 19 inside a cylin- ,y

drical chamber made by the Wall 20 which is divided byan inclined partition Wall 21.

The air that comes up from the bottom passes out through the triangular shaped opening 19 as indicated by the arron7 22 and then it passes around between the tubes as indicated bythe arrows making a complete circuit of the inside of the' chamber 6 and then passes in through a triangular aperture c 23 up into the dischargepassageway which leads to the pipe 7 see Fig. 2. Thus the air more or less heated from vthe compressor or exhaust machine 1 vafter having'been relieved of the heavier portion of its oil in the chamber 5 passes around through the cooling purifying chamber 6 Where it encounters the va rious different bafiles in the form oit the arrangement of the tubes 15 which collects the oil by the cooling effect upon the air and by the changes in direction of the air current. The changes of direction of the-air current in passing through the chamber 6 and around the tubes 15 are assisted by baffles 24 on the inner side of the outer Wall of the chamber 6 and bafiies 25 on the outside of the Wall 20. The oil thus collected falls to the lower por 'tion of the chamber 5 and is returned to the machine 1 by pipe 26 Figs. 3 and 5.

The circulatingr Water pipes 16 and 17 as described are connected up to the Water system that cools the machine 1 through the medium of the pipe 28.

More or less dust", comptar, or other foul products are segregated .fromy the air by my purifier and does accumulate tol some extent on the tubes 15 and onto the horizontal Wall tube sheets 11 and.12` and to facilitate the cleaning of the sameI provide thehand hole covers or detachable sections 29v secured by the bolts 30 to ber6. y. y y Thus by removing"4 theseY sections'of the chamber access 'may be had' to clean 'the inside of the chamber 6. y

This apparatus is cheaplyconstructed since the chamber 6 with its walls may be castin` one body block. The hand hole pieces 29 and the mainbody of the chamthe top andbottom plates 8 and 10 are made separately and fitted on to the block 6. The

tubes 15 being fitted Vin ,before the plates 8 are in place, and the Whole is then secured to the chamber 5 and shipped as a part of the Vmachine 1 which is a de'sideratum.

sarily having tochange materially the location of the piping system previouslyused which is a desideratum.

WhatI claimis: y K Y 1. In a gas purifier, the combination With an annular cooling chamber, of a concentric `fluewithin said chamber having`- lateralopenings into said chamber, an inclined partition axially closing said flue and also extending` across said cooling chamber at one Vside of said flue, `a plurality of tubes in said'chamber opening outwardly through the annularend Walls of said ehamber,and a pluralityoi deiiecting bailies extending,inivardlyufrom the lateral Walls of said chamber. Y y

2. In a gas purifier, the combinationl With an annulaif` cooling` chamber, an annularavall at each end of said chamber having tube receiving openings. a pluralityot tubes joining said annular Walls, a central flue having an inclined partition and openings'through the walls thereof and communicating With said cooling chamber on opposite sides of said partition, and means forv withdrawing separated matter. Y i

3. In anapparatus of the classdescribedn integrally castblockhaving terminal tube sheets. a centrally located cylindricall fine divided by an incline-d partition Wall and said partit-ion .iva-ll, top covering'plate and a bottom covering plate secured to projectingportions of the outer Walls4 ofthe Vsaid block in a manner to providecirculating spaces on the outside of each of the tube sheets. v

4. In an apparatuso'f the class described. a. vertically arranged discharge Hue divided bv an inclined Wall and a cooling chamber located outside of. and around the vertically arranged' 'discharge flue and said cooling chamber provided Withv a Vseries of tubes adapted to carry a circulating cooling medium, the sai-d tubes opening at eachend into a common cooling medium chamber'and means for ldirecting the travel ofthe"` discharge air up :against the inclined partition wall and around annui-arly through thecoolinn: chamber and back against the inclined partitif'in 'Wall and thence to the final discharge orifice. Y

5. In a gas purifier. the combination with a central. flue provided with lateral openings,

of a concentric annular cooling chamber with which said lateral openings communicate, an

annular cooling medium chamber also concentric w1th said flue at each end of saldcooling chamber, a plurality of tubes passing of fluid through said tubes, and an inclinedl 1-0 vpartition Wall axially closing said flue and also extended` laterally into said*y cooling chamber.

Signed at Chicago,in the county of Cook FERDINAND ERNEST LAMMERT.

and State of Illinois, Vthis 21st day of J une, l5 

